82225205 has 4 divisors (see below), whose sum is σ = 98670252. Its totient is φ = 65780160.

The previous prime is 82225193. The next prime is 82225219. The reversal of 82225205 is 50252228.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24373969 + 57851236 = 4937^2 + 7606^2 .

It is not a de Polignac number, because 82225205 - 2⁴ = 82225189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8222516 + ... + 8222525.

It is an arithmetic number, because the mean of its divisors is an integer number (24667563).

Almost surely, 2^82225205 is an apocalyptic number.

It is an amenable number.

82225205 is a deficient number, since it is larger than the sum of its proper divisors (16445047).

82225205 is a wasteful number, since it uses less digits than its factorization.

82225205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16445046.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 82225205 is about 9067.8114779698. The cubic root of 82225205 is about 434.8455081804.

The spelling of 82225205 in words is "eighty-two million, two hundred twenty-five thousand, two hundred five".